نتایج جستجو برای: thermally induced phase separation tips

تعداد نتایج: 1653195  

2016
Maryam Akhlaghi Tobias Steiner Sai Ramudu Meka Eric Jan Mittemeijer

Elastic accommodation of precipitation-induced or thermally induced misfit leads to lattice-parameter changes in crystalline multi-phase systems. Formulae for calculation of such misfit-induced lattice-parameter changes are presented for the aggregate (matrix + second-phase particles) and for the individual matrix and second phase, recognizing the occurrence of either coherent or incoherent dif...

Journal: :Proceedings in applied mathematics & mechanics 2023

The interaction of dislocations with phase boundaries is an interesting aspect the interplay between transformation and plasticity at nano-scale. We capture this within a field framework coupled to discrete dislocation dynamics. In order regularize stress driving force for evolution core, first strain-gradient elasticity approach used, which leads more physical, discretization-independent numer...

Journal: :The Journal of chemical physics 2014
Vincent Testard Ludovic Berthier Walter Kob

We use large-scale molecular dynamics simulations of a simple glass-forming system to investigate how its liquid-gas phase separation kinetics depends on temperature. A shallow quench leads to a fully demixed liquid-gas system whereas a deep quench makes the dense phase undergo a glass transition and become an amorphous solid. This glass has a gel-like bicontinuous structure that evolves very s...

2002
Dr. Dean Johnson George Lutes

An active wide-band fiber optic frequency distribution system employing a thermally controlled phase compensator to stabilize phase variations induced by environmenkal temperaiure changes is described. The dishibution system utilizes bidirational ddwavekng th transmission to provide optical feedback of induced phase variations of 100 MHz signals propagating along the distribution cable. The pha...

2017
B. R. Jany N. Gauquelin T. Willhammar M. Nikiel K. H. W. van den Bos A. Janas K. Szajna J. Verbeeck S. Van Aert G. Van Tendeloo F. Krok

Nano-sized gold has become an important material in various fields of science and technology, where control over the size and crystallography is desired to tailor the functionality. Gold crystallizes in the face-centered cubic (fcc) phase, and its hexagonal closed packed (hcp) structure is a very unusual and rare phase. Stable Au hcp phase has been reported to form in nanoparticles at the tips ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

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